Mineral Information and Data:

Chadwickite  
(UO2)HAsO3 [CNMNC approved formula]

Named after Sir James Chadwick (1891-1974), English physicist Cavendish Laboratory, University of Cambridge, U.K. 1935 Nobel Prize winner for his discovery of the neutron.

IMA status : Approved Species 1998 ()
CLASSIFICATION 
Dana
(8th edition) :
45.01.15.01  (This Dana# Added)
  (45) Acid and normal Antimonites, Arsenites and Phosphites
  (45.01) with miscellaneous formulae
  (45.01.15)
  
Nickel-Strunz
(10th edition) :
04.JA.60
  (04) Oxides and Hydroxides
  (04.J) Arsenites, Antimonites, Bismuthites, Sulfites,
  (04.JA) Arsenites, antimonites, bismuthites; without additional anions, without H2O
  
Crystal system: Tetragonal System
Point group (H-M): Unknown — Unk
  
  
  
Other Properties: Radioactive.

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